Ball-bearing hinge



Jan. 15 1924.` 1,481,214

M. S. KISSEL BALL BEARING HINGE Filed 0G15. 16 1922 ll lim 1 Mmmmz @Wo/:Mago

lidatented dan. l5, T924.

NETE@ STATES insana MARTIN S. KISSEL, OF AMER/EDGE, PENNSYLVANIA.

BALL-BEARING HINGE.

Application filed October 16, 1922. Serial No. 594,822.

To all lwhom t 'may concern:

Be it known that I, MARTIN S. KissnL, a citizen of the United States, residing at Ambridge, in the county of Beaver and State of Pennsylvania, have invented certain new and useful llmprovements in Ball- Bearing Hinges; and I do declare the tollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to ball bearing hinges and has for its object to provide an extremely simple and inexpensive hinge structure in which the two leaves of the hinges are connected with each other solely by the bearing balls interposed between the two sets of hinge knuckles and seated in concave ends with which said knuckles are provided.

Another object is to provide knuckles which are rolled into tubular form, whereby bevelling the edges of these knuckles before the rolling operation, will produce the required concave ends for said knuckles to engage the bearing balls.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawings.

Fig. 1 is a side elevation partly broken away and in section.

Fig. 2 is a vertical section on line 2 2 85 of Fig. i.

Figs. 3, 4f and 5 are horizontal sectional views `as indicated by lines 3 3, 4 4: and 5 5 of Fig. l.

Fig. 6 is a side elevation of one of the hinge leaves with its knuckles partly in section.

In the drawings above brieiiy described, the numerals l designate the two leaves ot the hinge, the adjacent edges of said hinge leaves being provided with integral lugs which are rolled into tubular form to provide a plurality of spaced hinge knuckles 2.

The ends of the knuckles of one leaf which oppose the ends of the knuckles of the other leaf, are internally bevelled, as indicated at 3, so that the opposed ends of the two sets of knuckles are provided with a concave formation. Seated within these concave knuckle ends and forming the sole means of pivotally connecting one set of knuckles with the other, are a plurality of bearing balls 4l. Thus, a simple and inexpensive hinge is provided which will operate very easily and cannot have its leaves disconnected from each other after they are once united at the factory. lt is of course, understood that special machinery will be necessary in assembling the said parts, for instance for rolling the hinge knuckles E2 of one of the leaves around the bearing balls, after the latter have been set in the concave ends of the knuckles of the other leaves. The bevels 3 may be formedprior to rolling the hinge knuckles into shape, in order to permit these bevels to be formed by a stamping operation at the time ot stamping the hinge leaves and knuckle forming lugs from a sheet of metal. It should be understood however, that the bevels 3 may be formed in any other desired manner and at any suitable stage o't the construction of the hinge.

As excellent results may be obtained from the details disclosed, they are preferably followed, but within the scope. of the invention as claimed, numerous minor changes may be made.

I claim:

A hinge comprising a pair of leaves having rolled tubular knuckles intermeshed 85 with each other and having their opposed ends internally bevelled, and bearing balls between the knuckles of the two leaves seated in said opposed bevelled knuckle ends.

In testimony whereof l have hereunto ailixed my signature.

MARTIN S. KISSEL. 

